If neurotransmitter from Y causes the membrane potential of the postsynaptic cell to decrease slightly, then
a. the synapse is excitatory
b. the postsynaptic membrane's potential will be farther away from threshold
c. the postsynaptic membrane causes an EPSP on the presynaptic membrane
d. neurotransmitter from Y causes an IPSP on the presynaptic membrane
e. both a and c are correct
A
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